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SDR-54D
L-Band Receiver/Demodulator
Introduction:
SDR-54D is a versatile L-band receiver/demodulator for
satellite data broadcast applications.
SDR-54D supports symbol rates from 9.6 to 2500 ks/s. This
allows for data rates from 4.8 to 2500 kbit/s, in 1 bit/s
increments, depending on demodulation type and code format.
The received data is provided in a standard, serial data
format.
Two different versions are currently
available:
 Desktop
unit
Rackmount
unit
SDR-54D supplies power (+18~+22VDC) to the LNB via the
IF input port.
Functionality:
SDR-54D receives L-band (950 through 1750MHz) input directly
from a C- or Ku-band phase locked LNB mounted on the antenna
feed. The demodulator detects and decodes the receive
signal, and sends the data stream to a serial data output
port.
The demodulator receive frequency is turned in 1KHz steps,
and receive data rates are variable in 1bit/s steps.
High Performance:
SDR-54D employs the latest digital technology to deliver
high performance at a low cost. The demodulator uses coherent
detection to recover BPSK or QPSK modulated signals at
code rates 1/2. The result is a 3dB improvement in Eb/No
performance over different detection techniques. The advantages
of this enhanced performance include large threshold margins
and the use of smaller receive antennas.
Features:
A highly sophisticated microprocessor performs
all M&C functions for the SDR-54D. The demodulator
is controlled and monitored via an EIA-232 port, on the
rear panels of the SDR-54D, and allows for utilization
of a standard ASCÅ terminal.
SDR-54D also sustain the Satellite Link Remote Control
(SLRC), This permits remote programming of the SDR-54D
over the satellite link. The SLRC operates in a special
fail-safe mode that prevents erroneous programming.
Complementary Products:
Wancom offers a fine line of satellite RF products to
complement the SDR-54D, including:
CLNB
(P) C-band phase locked block converter
KLNB
(P) Ku-band phase locked block converter
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